JP4032121B2 - 炭素層被覆遷移金属ナノ構造体の製造方法、炭素層被覆遷移金属ナノ構造体パターンの製造方法、炭素層被覆遷移金属ナノ構造体、及び炭素層被覆遷移金属ナノ構造体パターン - Google Patents
炭素層被覆遷移金属ナノ構造体の製造方法、炭素層被覆遷移金属ナノ構造体パターンの製造方法、炭素層被覆遷移金属ナノ構造体、及び炭素層被覆遷移金属ナノ構造体パターン Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 96
- 229910052799 carbon Inorganic materials 0.000 title claims description 96
- 229910052723 transition metal Inorganic materials 0.000 title claims description 94
- 150000003624 transition metals Chemical class 0.000 title claims description 92
- 239000002086 nanomaterial Substances 0.000 title claims description 76
- 238000004519 manufacturing process Methods 0.000 title claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 68
- 239000011858 nanopowder Substances 0.000 claims description 39
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 23
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 229910052742 iron Inorganic materials 0.000 claims description 20
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000005997 Calcium carbide Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 13
- PWUBONDMIMDOQY-UHFFFAOYSA-N acetonitrile;hydrochloride Chemical compound Cl.CC#N PWUBONDMIMDOQY-UHFFFAOYSA-N 0.000 claims description 12
- 238000010894 electron beam technology Methods 0.000 claims description 8
- 230000005291 magnetic effect Effects 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- -1 anhydride chloride Chemical class 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- FWUCYSLDZZOJGE-UHFFFAOYSA-N [Co+2].[C-]#[C-] Chemical compound [Co+2].[C-]#[C-] FWUCYSLDZZOJGE-UHFFFAOYSA-N 0.000 claims description 2
- UHUAFIJPQVXIRB-UHFFFAOYSA-N [Fe+2].[C-]#[C-] Chemical group [Fe+2].[C-]#[C-] UHUAFIJPQVXIRB-UHFFFAOYSA-N 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- 230000005307 ferromagnetism Effects 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 150000001723 carbon free-radicals Chemical class 0.000 description 8
- 150000001450 anions Chemical class 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000005294 ferromagnetic effect Effects 0.000 description 6
- 239000006227 byproduct Substances 0.000 description 4
- 230000001747 exhibiting effect Effects 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/0036—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity
- H01F1/009—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of dimensions, e.g. showing giant magnetoresistivity bidimensional, e.g. nanoscale period nanomagnet arrays
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
- B22F1/056—Submicron particles having a size above 100 nm up to 300 nm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/16—Metallic particles coated with a non-metal
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- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
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Description
粒径制御などの点においてさまざまな問題がある。この結果、実用に足る炭素層被覆遷移金属ナノ構造体は未だ得られていない。
MCl2(M=Fe、Co又はNi)なる一般式で表される無水塩化物を無水アセトニトリル溶媒中に溶解し、塩化物−アセトニトリル溶液を作製する工程と、
前記塩化物−アセトニトリル溶液中に、カルシウムカーバイド微粉末を、前記無水塩化物に対して当モル量又は1モル%〜30モル%少ない割合で添加し、分散させて、反応溶液を作製する工程と、
前記反応溶液を所定温度に加熱して第1の熱処理を行い、前記反応溶液中で前記無水塩化物と前記カルシウムカーバイドとを化学的に反応させて、M−C2−M結合を有するとともに正方晶形骨格構造を呈し、MC2なる一般式で表される遷移金属アセチリド化合物(M=Fe、Co又はNi)からなるナノ粉末を形成する工程と、
前記ナノ粉末を前記第1の熱処理における加熱温度以上に加熱して第2の熱処理を行い、Fe、Co又はNiの遷移金属からなる金属コア及び前記金属コアの周囲を覆うようにして形成された炭素層を有する炭素層被覆遷移金属ナノ構造体を形成する工程と、
を具えることを特徴とする、炭素層被覆遷移金属ナノ構造体の製造方法(第1の製造方法)に関する。
MCl2(M=Fe、Co又はNi)なる一般式で表される無水塩化物を無水アセトニトリル溶媒中に溶解し、塩化物−アセトニトリル溶液を作製する工程と、
前記塩化物−アセトニトリル溶液中に、カルシウムカーバイド微粉末を、前記無水塩化物に対して当モル量又は1モル%〜30モル%少ない割合で添加し、分散させて、反応溶液を作製する工程と、
前記反応溶液を所定温度に加熱し、前記反応溶液中で前記無水塩化物と前記カルシウムカーバイドとを化学的に反応させて、M−C2−M結合を有するとともに正方晶形骨格構造を呈し、MC2なる一般式で表される遷移金属アセチリド化合物(M=Fe、Co又はNi)からなるナノ粉末を形成する工程と、
前記ナノ粉末に対して電子線又は電磁波を照射し、Fe、Co又はNiの遷移金属からなる金属コア及び前記金属コアの周囲を覆うようにして形成された炭素層を有する炭素層被覆遷移金属ナノ構造体を形成する工程と、
を具えることを特徴とする、炭素層被覆遷移金属ナノ構造体の製造方法(第2の製造方法)に関する。
11 ガラス容器
12 耐圧容器
13 ヒータ
14 回転子
15 温度センサ
16 ガス導入排気口
17 圧力計
Claims (14)
- MCl2(M=Fe、Co又はNi)なる一般式で表される無水塩化物を無水アセトニトリル溶媒中に溶解し、塩化物−アセトニトリル溶液を作製する工程と、
前記塩化物−アセトニトリル溶液中に、カルシウムカーバイド微粉末を、前記無水塩化物に対して当モル量又は1モル%〜30モル%少ない割合で添加し、分散させて、反応溶液を作製する工程と、
前記反応溶液を所定温度に加熱して第1の熱処理を行い、前記反応溶液中で前記無水塩化物と前記カルシウムカーバイドとを化学的に反応させて、M−C2−M結合を有するとともに正方晶形骨格構造を呈し、MC2なる一般式で表される遷移金属アセチリド化合物(M=Fe、Co又はNi)からなるナノ粉末を形成する工程と、
前記ナノ粉末を前記第1の熱処理における加熱温度以上に加熱して第2の熱処理を行い、Fe、Co又はNiの遷移金属からなる金属コア及び前記金属コアの周囲を覆うようにして形成された炭素層を有する炭素層被覆遷移金属ナノ構造体を形成する工程と、
を具えることを特徴とする、炭素層被覆遷移金属ナノ構造体の製造方法。 - 前記無水塩化物はFeCl2であって、前記第1の熱処理における加熱温度が75℃〜200℃であり、前記第2の熱処理における加熱温度が200℃以上であることを特徴とする、請求項1に記載の炭素層被覆遷移金属ナノ構造体の製造方法。
- 前記無水塩化物はCoCl2であって、前記第1の熱処理における加熱温度が75℃〜200℃であり、前記第2の熱処理における加熱温度が200℃以上であることを特徴とする、請求項1に記載の炭素層被覆遷移金属ナノ構造体の製造方法。
- 前記無水塩化物はNiCl2であって、前記第1の熱処理における加熱温度が75℃〜160℃であり、前記第2の熱処理における加熱温度が160℃以上であることを特徴とする、請求項1に記載の炭素層被覆遷移金属ナノ構造体の製造方法。
- MCl2(M=Fe、Co又はNi)なる一般式で表される無水塩化物を無水アセトニトリル溶媒中に溶解し、塩化物−アセトニトリル溶液を作製する工程と、
前記塩化物−アセトニトリル溶液中に、カルシウムカーバイド微粉末を、前記無水塩化物に対して当モル量又は1モル%〜30モル%少ない割合で添加し、分散させて、反応溶液を作製する工程と、
前記反応溶液を所定温度に加熱し、前記反応溶液中で前記無水塩化物と前記カルシウムカーバイドとを化学的に反応させて、M−C2−M結合を有するとともに正方晶形骨格構造を呈し、MC2なる一般式で表される遷移金属アセチリド化合物(M=Fe、Co又はNi)からなるナノ粉末を形成する工程と、
前記ナノ粉末に対して電子線又は電磁波を照射し、Fe、Co又はNiの遷移金属からなる金属コア及び前記金属コアの周囲を覆うようにして形成された炭素層を有する炭素層被覆遷移金属ナノ構造体を形成する工程と、
を具えることを特徴とする、炭素層被覆遷移金属ナノ構造体の製造方法。 - 前記遷移金属アセチリドは鉄アセチリド又はコバルトアセチリドであって、単結晶ドメインの直径が5nm〜300nmの範囲において、室温で強磁性を呈することを特徴とする、請求項1〜5のいずれか一に記載の炭素層被覆金属ナノ構造体の製造方法。
- 前記炭素層被覆遷移金属ナノ構造体は、室温において超常磁性を呈することを特徴とする、請求項1〜5のいずれか一に記載の炭素層被覆金属ナノ構造体の製造方法。
- 前記炭素層被覆遷移金属ナノ構造体は、室温において200ガウス以上の保磁力を有することを特徴とする、請求項6に記載の炭素層被覆遷移金属ナノ構造体の製造方法。
- 前記炭素層被覆遷移金属ナノ構造体の粒径が、200nm以下であることを特徴とする、請求項1〜8のいずれか一に記載の炭素層被覆遷移金属ナノ構造体の製造方法。
- 前記炭素層の厚さが3nm〜20nmであることを特徴とする、請求項1〜9のいずれか一に記載の炭素層被覆遷移金属ナノ構造体の製造方法。
- MCl2(M=Fe、Co又はNi)なる一般式で表される無水塩化物を無水アセトニトリル溶媒中に溶解し、塩化物−アセトニトリル溶液を作製する工程と、
前記塩化物−アセトニトリル溶液中に、カルシウムカーバイド微粉末を、前記無水塩化物に対して当モル量又は1モル%〜30モル%少ない割合で添加し、分散させて、反応溶液を作製する工程と、
前記反応溶液を所定温度に加熱し、前記反応溶液中で前記無水塩化物と前記カルシウムカーバイドとを化学的に反応させて、M−C2−M結合を有するとともに正方晶形骨格構造を呈し、MC2なる一般式で表される遷移金属アセチリド化合物(M=Fe、Co又はNi)からなるナノ粉末を形成する工程と、
前記ナノ粉末を加工して前記遷移金属アセチリド化合物からなる層を形成するとともに、前記層に対して電子線又は電磁波をスポット状に照射し、Fe、Co又はNiの遷移金属からなる金属コア及び前記金属コアの周囲を覆うようにして形成された炭素層を有する炭素層被覆遷移金属ナノ構造体がマトリックス状に配置されてなる炭素層被覆遷移金属ナノ構造体パターンを形成する工程と、
を具えることを特徴とする、炭素層被覆遷移金属ナノ構造体パターンの製造方法。 - 前記層の、前記炭素層被覆遷移金属構造体を除く残部を除去する工程を具えることを特徴とする、請求項11に記載の炭素層被覆遷移金属ナノ構造体パターンの製造方法。
- Fe、Co又はNiの遷移金属からなる金属コア、及び前記金属コアの周囲を覆うようにして形成された炭素層を有する炭素層被覆遷移金属ナノ構造体を、マトリックス状に配列してなることを特徴とする、炭素層被覆遷移金属ナノ構造体パターン。
- 前記炭素層被覆遷移金属ナノ構造体間に超常磁性部材を配置し、隣接する前記炭素層被覆遷移金属ナノ構造体間の磁気双極子相互作用を打ち消すようにしたことを特徴とする、請求項13に記載の炭素層被覆遷移金属ナノ構造パターン。
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US10/944,192 US20050170181A1 (en) | 2004-02-03 | 2004-09-20 | Method for producing a carbon layer-covering transition metallic nano-structure, method for producing a carbon layer-covering transition metallic nano-structure pattern, carbon layer-covering transition metallic nano-structure, and carbon layer-covering transition metallic nano-structure pattern |
EP04022424A EP1561738A2 (en) | 2004-02-03 | 2004-09-21 | Method for producing a carbon layer-covering transition metallic nano-structure or transition metallic nano-structure pattern and carbon layer-covering transition metallic nano-structure or transition metallic nano-structure pattern |
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US20110223317A1 (en) * | 2010-03-12 | 2011-09-15 | United Technologies Corporation | Direct thermal stabilization for coating application |
US20110223354A1 (en) * | 2010-03-12 | 2011-09-15 | United Technologies Corporation | High pressure pre-oxidation for deposition of thermal barrier coating |
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